Abstract

Research on dynamical processes within the Earth and planets increasingly relies
upon sophisticated, large-scale computational models. Improved understanding of
fundamental physical processes such as mantle convection and the geodynamo,
magma dynamics, crustal and lithospheric deformation, earthquake nucleation, and
seismic wave propagation, are heavily dependent upon better numerical modeling.
Surprisingly, the rate-limiting factor for progress in these areas is not just computing
hardware, as was once the case. Rather, advances in software are not keeping pace
with the recent improvements in hardware. Modeling tools in geophysics are usually
developed and maintained by individual scientists, or by small groups. But it is
difficult for any individual, or even a small group, to keep up with sweeping
advances in computing hardware, parallel processing software, and numerical
modeling methodology.